RT Journal Article SR Electronic T1 Progressive cranial neuropathy and uterine involvement in myeloid sarcoma JF BMJ Neurology Open JO BMJ Neurol Open FD BMJ Publishing Group Ltd SP e000006 DO 10.1136/bmjno-2019-000006 VO 1 IS 1 A1 Anthony Khoo A1 Thomas Kimber A1 Penelope Cohen A1 Roula Ghaoui YR 2019 UL http://neurologyopen.bmj.com/content/1/1/e000006.abstract AB A rare extramedullary manifestation of haematological malignancy, myeloid sarcoma is most commonly seen in patients with acute myeloid leukaemia. We report on an adult patient who presented with an atypical phenotype of progressive cranial neuropathy without blood or bone marrow involvement, and in whom obtaining material for pathological diagnosis was made challenging by unusual findings of absent fluorodeoxyglucose-positron emission tomography avidity and involvement of sites not readily accessible to biopsy (orbital apex and cauda equina). The eventual diagnosis was obtained through biopsy of the uterine cervix before being verified on repeat lymph node and cerebrospinal fluid sampling prior to initiation of chemotherapy.